From bb904d877f522e196c8223ad10507abce8d7f632 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sun, 19 May 2024 14:22:22 +0900
Subject: refactor: reinterpret conversions

---
 src/Utility/BinaryConversion.php | 108 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 src/Utility/BinaryConversion.php

(limited to 'src/Utility')

diff --git a/src/Utility/BinaryConversion.php b/src/Utility/BinaryConversion.php
new file mode 100644
index 0000000..0ca6927
--- /dev/null
+++ b/src/Utility/BinaryConversion.php
@@ -0,0 +1,108 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Nsfisis\Waddiwasi\Utility;
+
+use InvalidArgumentException;
+use function pack;
+use function unpack;
+
+final readonly class BinaryConversion
+{
+    public static function reinterpretI32AsF32(int $x): float
+    {
+        return self::deserializeF32FromBytes(self::serializeI32ToBytes($x));
+    }
+
+    public static function reinterpretI64AsF32(int $x): float
+    {
+        return self::deserializeF32FromBytes(self::serializeI64ToBytes($x));
+    }
+
+    public static function reinterpretI32AsF64(int $x): float
+    {
+        return self::deserializeF64FromBytes(self::serializeI32ToBytes($x));
+    }
+
+    public static function reinterpretI64AsF64(int $x): float
+    {
+        return self::deserializeF64FromBytes(self::serializeI64ToBytes($x));
+    }
+
+    public static function reinterpretF32AsI32(float $x): int
+    {
+        return self::deserializeI32FromBytes(self::serializeF32ToBytes($x));
+    }
+
+    public static function reinterpretF64AsI32(float $x): int
+    {
+        return self::deserializeI32FromBytes(self::serializeF64ToBytes($x));
+    }
+
+    public static function reinterpretF32AsI64(float $x): int
+    {
+        return self::deserializeI64FromBytes(self::serializeF32ToBytes($x));
+    }
+
+    public static function reinterpretF64AsI64(float $x): int
+    {
+        return self::deserializeI64FromBytes(self::serializeF64ToBytes($x));
+    }
+
+    public static function serializeI32ToBytes(int $x): string
+    {
+        return pack('l', $x);
+    }
+
+    public static function deserializeI32FromBytes(string $s): int
+    {
+        $result = unpack('l', $s);
+        if ($result === false) {
+            throw new InvalidArgumentException("Failed to unpack i32: $s");
+        }
+        return $result[1];
+    }
+
+    public static function serializeI64ToBytes(int $x): string
+    {
+        return pack('q', $x);
+    }
+
+    public static function deserializeI64FromBytes(string $s): int
+    {
+        $result = unpack('q', $s);
+        if ($result === false) {
+            throw new InvalidArgumentException("Failed to unpack i64: $s");
+        }
+        return $result[1];
+    }
+
+    public static function serializeF32ToBytes(float $x): string
+    {
+        return pack('f', $x);
+    }
+
+    public static function deserializeF32FromBytes(string $s): float
+    {
+        $result = unpack('f', $s);
+        if ($result === false) {
+            throw new InvalidArgumentException("Failed to unpack f32: $s");
+        }
+        return $result[1];
+    }
+
+    public static function serializeF64ToBytes(float $x): string
+    {
+        return pack('d', $x);
+    }
+
+    public static function deserializeF64FromBytes(string $s): float
+    {
+        $result = unpack('d', $s);
+        if ($result === false) {
+            throw new InvalidArgumentException("Failed to unpack f64: $s");
+        }
+        return $result[1];
+    }
+}
-- 
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